Adjective
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characterized by unusual lightness and delicacy
"this smallest and most ethereal of birds"
"gossamer shading through his playing"
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of heaven or the spirit
"celestial peace"
"ethereal melodies"
"the supernal happiness of a quiet death"
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of or containing or dissolved in ether
"ethereal solution"
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characterized by lightness and insubstantiality
as impalpable or intangible as air
"figures light and aeriform come unlooked for and melt away"- Thomas Carlyle
"aerial fancies"
"an airy apparition"
"physical rather than ethereal forms"